Seb Duggan

Recent Blog Comments By Seb Duggan

• Very Strange Script-Based Behavior For CFParam In ColdFusion

  Posted on Nov 1, 2013 at 8:42 AM

  @Adam, Agreed, it shouldn't be necessary. Would be interesting to see if it resolves the odd behaviour though...... read more »

• Very Strange Script-Based Behavior For CFParam In ColdFusion

  Posted on Nov 1, 2013 at 4:51 AM

  Shouldn't you really be referring to arguments.rc in the methods, rather than just rc? What happens if you do that?... read more »

• JsonSerializer.cfc - A Data Serialization Utility For ColdFusion

  Posted on Aug 8, 2013 at 4:51 AM

  @Ben - great stuff. It's a very different approach to serialisation, but I can see its benefits! Neater than my current method of deep-looping through a data structure and forcing all the variable names to lower case before serialising... One question: arrays. If I have an array: MYLUCKYNUMBERS = ... read more »

• Branching Logic vs. Guard Logic When It Comes To Function Control Flow

  Posted on May 17, 2011 at 10:00 AM

  As usual, Ben, some food for thought! I must confess that I have used both in the past without actually drawing a mental distinction between them. But I do like the concept of the guard-logic, which apart from anything else can do away with many nested if/else statements. Although if you have that... read more »

• Using GMail's Plus-Style Addressing To Track Bounce Back Email Meta Data

  Posted on Apr 16, 2010 at 10:32 AM

  Besides, I'd be very surprised if foobar@yahoo.com doesn't actually exist!... read more »

• Using GMail's Plus-Style Addressing To Track Bounce Back Email Meta Data

  Posted on Apr 16, 2010 at 10:25 AM

  Yeah, Postmark aren't kidding when they say: "You should not have to worry about this stuff, it's an entire industry on its own"... read more »

• Converting An IP Address To An Integer Using MySQL (Thanks Julian Halliwell)

  Posted on Jan 30, 2010 at 6:33 AM

  Here are two MS SQL functions to do the conversions: (hope the pre tags work in these comments...) <pre> ALTER FUNCTION [dbo].[ip2number] ( @ip varchar(15) ) RETURNS bigint AS BEGIN DECLARE @numrep bigint DECLARE @start int, @end int, @exp int SET @exp = 3 SET @start = 1 SET @numrep... read more »

• Converting An IP Address To An Integer Using MySQL (Thanks Julian Halliwell)

  Posted on Jan 29, 2010 at 9:49 AM

  I've come across this IP address conversion recently in the free GeoIP database. Makes it easy to convert your IP into a number, and find which range of IPs it lies in using BETWEEN. Of course, I'm using MSSQL, so had to write my own function (actually, a stored procedure) to do the conversion.... read more »

• How To Build A Custom jQuery Selector

  Posted on Jan 13, 2009 at 7:04 PM

  I appreciate that this may just be an example chosen to demonstrate the writing of a custom selector, but if not... Why would you not just use: $("li[title='foo']") And for both, you could use: $("li[title='foo'], li[title='bar']") The attribute matching also allows you to match substrings.... read more »

• jQuery Data() Method Associates Data With DOM Elements - SWEET ASS SWEET!

  Posted on Nov 20, 2008 at 11:47 AM

  I discovered this feature a couple of weeks ago, and it's been a revelation to me! Hadn't yet got round to blogging it, and now you've beaten me to it...... read more »

• Using CAPTCHA In ColdFusion 8

  Posted on Jan 15, 2008 at 4:52 AM

  I've been using CAPTCHAs generated by cfimage recently, and came across a problem, which I've detailed on my blog (I've finally got round to setting one up!): http://sebduggan.com/posts/cfimage-generating-unreadable-captchas Basically, cfimage CAPTCHAs are PNGs with alpha transparency on their b... read more »

• Exercise List: Designing The Database Schema

  Posted on Oct 22, 2007 at 7:52 AM

  I second Zac's comment; I've also recently started prefixing foreign key fields with "frn_" - for example, if referring to joint_id from another table, I would name the column frn_joint_id. Just makes it clearer you're referring to another table...... read more »

• Nylon Technology Presentation - Some Of The Forgotten Functions

  Posted on Jun 15, 2007 at 8:27 PM

  The really useful one I'd forgotten about until recently is ValueList(). Saves all that unnecessary query looping!!... read more »

• Learning ColdFusion 8: CFImage Part I - Reading And Writing Images

  Posted on Jun 12, 2007 at 12:31 PM

  Don't know much about it myself - just what I deduced from poking and prodding!... read more »

• Learning ColdFusion 8: CFImage Part I - Reading And Writing Images

  Posted on Jun 12, 2007 at 11:19 AM

  Yes, you can call the images directly from the URL, but not if you stop the CF application service...... read more »

• Learning ColdFusion 8: CFImage Part I - Reading And Writing Images

  Posted on Jun 12, 2007 at 11:02 AM

  A couple of notes on the generated images and CFFileServlet... The images are created in <cf8root>/tmpCache/CFFileServlet/ - and then either in _cf_image/ or _cf_captcha/ (when you get on to your CAPTCHA tutorial!). Images are cleared out of the temp directory 5 minutes after they are create... read more »

• Lenny And Bo, ColdFusion Programmers (Vol. 3)

  Posted on Mar 30, 2007 at 12:51 PM

  Hmmm... not sure what it is, but there's something a bit similar between all three cartoons so far... ;-)... read more »

• jQuery Demo: Build A ColdFusion Guru

  Posted on Mar 12, 2007 at 10:21 AM

  I'd never heard of jQuery before Ben raved about it recently; but I now already find it indispensible - and incredibly easy to pick up! I've been using it for both front- and back-end interfaces, and after three weeks of using jQuery have found myself answering a load of newbies' questions on the m... read more »

• You Really Shouldn't Be Here jQuery, My Wife Might Begin To Suspect Something

  Posted on Feb 6, 2007 at 10:08 AM

  Now that does look cool... Yet again, reading Ben's blog means I'll lose several hours of productive time while I play with a new toy. (But as usual, it will save me many hours in the long run!)... read more »

• PLEASE HELP! Why Is This Application.cfc Throwing Errors?

  Posted on Oct 18, 2006 at 11:32 AM

  Works fine for me too - CF MX 7 on Windows 2003 server... Everyone here has run it successfully; have you tried deleting your files and recreating them from what you've posted on the blog?... read more »